Download presentation
Presentation is loading. Please wait.
1
CERTIFICATION BY ANALYSIS
Overview to FAA 30 August 2001 Christopher L. Clay Air Vehicles Directorate Air Force Research Laboratory
2
Definition Certification
By Analysis Increasing reliance on analytical techniques to achieve a more comprehensive understanding of the system in order to manage system risk better Certification A structured mechanism of identifying and reducing risk to insure a system is safe to operate and meets performance goals Certification is a risk management system. Certification by analysis is a means based in analytical techniques to manage system risk better. If we can reduce risk to an equivalent level as that which is completed during testing, analysis thru osmosis will be infused into the process. This process is design driven. We want to enable Design smarter Reduce dependence on historical data Instill innovation -> increased in understanding Remember Certification is A risk management Driven by the design process We can see this by looking a case examples
3
Reduce time and cost associated with certification
Goal Reduce time and cost associated with certification Our goal is simple … Basically we want to enable the acquisition community to procure aircraft in a more timely manner and with lower cost. The process encompasses all aspects of certification – concept to grave, concept demonstration to fleet insertion of a component. Therefore, this goal is not only for new systems, but also for replacement parts of existing systems. The commonly assumed goal of reduced testing is one means by which we can achieve our stated goals.
4
Structural Building Block Testing
Motivation Structural Building Block Testing Coupon Element Testing Panel and Critical Detail Testing Critical Subcomponent Testing Preproduction Verification Test Article Static Test Article Fatigue Test Article 10’s of $M each block
5
Transition Approach Research & Development System Acquisition
Design Process Analysis Certification High Fidelity/ Risk Quantified Methods Research & Development Reliable Predictions System Knowledge Eliminate Surprises In Tests & In Field Reduce Time and $$$ System Acquisition Reduce Tests Time and experience are required by the system acquisition people to gain confidence in the analytical process to know when they can rely on them without supporting tests. This approach, when transitioned to the system acquisition community, will, over time, lead toward the goal of reduced time and cost in the certification process.
6
Approach Design Process Rapid modeling h Configuration management
Object oriented h Information/data management Design Process Analysis Certification High Fidelity/ Risk Quantified Methods First category is the design process which is essentially the way different disciplines communicate with each other. Many of the current attempts at enhancing the design process simply link data from input and output files together. While this is an enhancement from the past, it still lacks the potential that the current software paradigms have to offer. The first prong to the approach is to develop the design process that enhances communications between various disciplines. One of the most time-consuming parts of the current design process is developing the models for analyses. We have already conceptually demonstrated methods that can significantly reduced the time to develop new models. This work needs to be extended to include additional portions of the aircraft. The challenge remains to show how this process can be extended and integrated into a comprehensive design process. Current Design Process Deficiencies Slow and fragmented design process “Over the wall” communications Sequential processing
7
Risk Quantified Methods
Approach High Fidelity/Risk Quantified Methods Deficiencies Uncertainty modeling in Structures and Aerodynamics Understanding of the physics Computationally intensive high fidelity methods High Fidelity/ Risk Quantified Methods Non-deterministic methods Faster turn-around time ROM/Nonlinear methods Design Process Analysis Certification High Fidelity/ Risk Quantified Methods The second category is high fidelity and risk quantified methods. High fidelity methods are computational expensive. Uncertainty modeling currently is not performed in most areas of the air vehicles design. The second prong to the approach addresses high fidelity and risk quantified methods. Most high fidelity methods are highly computationally expensive. The effort here needs to be placed on finding high fidelity solutions quicker. Non-deterministic methods can be used to defining system risk and thus understand risk better. Better understanding of risk allows us to manage system risk better.
8
Approach Analysis Certification Analysis Certification Deficiencies
Modeling errors Credibility of analytical results Implementation of analysis Human errors Analysis Certification Expert systems Benchmarking VV&A Design Process Analysis Certification High Fidelity/ Risk Quantified Methods The third category is analysis certification. It addresses the issue of insuring that the systems are accurately modeled. This includes both the analysis method and the input and output data from that method. The third prong of our approach addresses the issue of understanding the analyses.. A verification, validation and accreditation procedure assures some standard of compliance with known limitations of computer software. An expert system will allow a semi-automated review of the data to ensure compliance with the VV&A report. These features will greatly enhance the integrity of the data. This will also help identify those times in which higher fidelity methods need to be used. Now lets relate this back to the cert process
9
Certification Process AFMAN 63-119
Test Planning & Documentation System Design & Performance Test Assets & Support Concept of Operations Contractor Testing Production Representative Articles Test Team Training Packaging, Handling & Transportation Schedule MNS TEMP Developmental Testing Interoperability & Compatibility Personnel Support Agreements ORD OT&E Plan Live Fire Testing Seek Eagle AFI Software Development Test & Eval Infrastructure Contractor Support The air vehicles directorate’s approach to certification by analysis focuses on these three templates. Also covered is the Seek Eagle program which is covered under Air Force instruction Developing the technologies that directly support these areas in green will impact all of these other areas, shown in red, in the certification process as well. In other words, our research directly addresses the issues defined by the templates shown in green and as a result the templates shown in red will be impacted as well. S/W Development – Controls Safety Review and Cert – Includes Airframes – ASIP - Modeling and Sim – Seek Eagle – Stores certification Deficiency ID & Correction Process Safety Reviews & Certifications COEA System Performance Modeling & Simulation Threat Systems STAR Security Planning System Maturity Deficiency Resolution Support Equipment Technical Data Configuration Management Plan Maintenance Concept Sufficiency of Spares
10
Certification by Analysis Horizontal and Vertical Integration
CAMPAIGN INTEGRATED DESIGN MISSION / ENGAGEMENT REDUCE TIME & COST CONTROLS AERODYNAMICS SENSORS PROPULSION STRUCTURES WEAPONS Conceptual Design Preliminary Design Detailed Design Fundamental Sciences & Empirical Data
11
Certification by Analysis Building Block Approach
Sim based Acquisition Vehicle Propulsion Aero Structures Control Subsystems Tail Fuselage Wing We are looking at the impact that this technology can have on sustainment issues. The three airframers will be looking at redesigns of structural components that have recently occurred and will possibly occur in the near future. It will look at verifying that the analytical capabilities are sufficient as a means to reduce costs and enable replacements that previously had been prohibitively costly to certify. Design Process Analysis Certification High Fidelity/ Risk Quantified Methods Bulkheads Skins Wing box Skins Spars Ribs Applies to each block
12
Certification by Analysis Players
RTO – new WGs Qualification by Analysis Integration of Tools and Processes for Affordable Weapons Reduction of Military Vehicle Acquisition Time & Cost Through Advanced Product Simulation Prior work published 1990 NASA FAA – Probability Analysis DARPA – AIM AFRL ML – Analytical Chemistry PR – Probability Analysis VA – Integration Other Industries Nuclear power – cannot take to failure Nuclear arms – Test Ban Treaty Submarine – Similar to A/C Civil Structure – One-of-a-kind, SF – 100 yrs ago 3, today=2 Chemical - Analysis to eliminate human specimens Under process. Source: Bill Moyers – PBS AIM – accelerated insertion of materials ISE – intelligent synthesis environment =internal NASA design tool for creation of next gen shuttle.
13
Summary Risk reduction, design driven process that we can impact by fully utilizing technologies such as uncertainty analysis and ROM resulting in a reduction in the dependence on testing and increasing our design capabilities - instilling innovation and freedom. In summary, the goals of certification by analysis will be achieved through a three-pronged approach applied to components, assemblies and built-up structures. CBA – Risk reduction, design driven process that we can impact to permit by fully utilizing technologies such as probabilistic and uncertainty analysis, ROM , Etc etc. Resulting in a reduction in the dependence on testing, increasing our design capabilities - design smarts, reducing our dependence on historical data, instilling innovation and freedom into the process, and increasing in understanding.
14
Backups
15
IPT Structure Advisory Group Integrating IPT Airframes Propulsion
Working Groups Advisory Group AFRL/VA – Chair AFRL/PR AFRL/MN Seek Eagle AF/TE ASC/EN SAF/AQ ALC Navy FAA Boeing LMCO NG Integrating IPT AFRL/VA – Chair Chairs from each of the IPT + a design environments and process POC Airframes Propulsion Stores Controls Aero Others
16
Advisory Group Advisory Group IPT Others Controls Aero Propulsion
AFRL/VA – Chair AFRL/PR AFRL/MN AF/TE ASC/EN SAF/AQ ALC Navy N/ FAA Boeing LMCO NG IPT Chairs from each of the IPT + a design environments and process POC Others Controls Aero Propulsion Airframes Stores Chair – Dr Don Paul, AFRL/VA AFRL/PR – Dr Alan Garscadden AFRL/MN – Mr Stephen Korn Seek Eagle - Dr. William Dyess, Jr AF/TE – Mr John T Manclark or Mr David Hamilton ASC/EN – Dr John W Lincoln SAF/AQ – Dr Don Daniel ALC – Navy Test and Evaluation Staff (AIR 5.0C) Air Vehicle (AIR 4.3) Airworthiness (AIR 4.0P) FAA Boeing – Dr James Mark LMCO – Mr Kevin Imoto NG – Mr Jerry Lockenour
17
IPTs Lead – Team: Advisory Group Overarching IPT Airframes Stores
AFRL/VA – Chair Overarching IPT AFRL/VA – Chair AFRL/PR AFRL/MN AF/TE ASC/EN SAF/AQ ALC Navy N/ FAA Boeing LMCO NG Chairs from each of the IPT + a design environments and process POC Airframes Stores Propulsion Controls Others Aero
18
Overarching IPT CoChairs – Drs Don Paul and Duane Veley
Airframe IPT Lead – Propulsion IPT Lead – Stores IPT Lead – Controls IPT Lead – Aero IPT Lead – Design Environments and Process Lead – Industry Advisors - Advisory Group AFRL/VA – Chair AFRL/PR AFRL/MN AF/TE ASC/EN SAF/AQ ALC Navy N/ FAA Boeing LMCO NG Overarching IPT Chairs from each of the IPT + a design environments and process POC Others Controls Aero Propulsion Airframes Stores
19
Air Vehicles Future Technologies Workshops
Chris Clay Air Force Research Laboratory COVER SLIDE SLIDE BACKGROUND: Color is Red: 0, Green= 0, Blue =102 as shown. The template will automatically apply the color. BRIEFING TITLE: Use Arial Bold 48 point, all caps. The color is red= 254, green=232, blue= 0 as shown here. The template will automatically apply the correct color. BRIEFER’S NAME: Use Arial Bold 28 point, caps & lower case. Text color is white. BRIEFER’S RANK OR TITLE: Use Arial Bold 24 point, caps & lower case. Text color is white. AIR FORCE RESEARCH LABORATORY: Use Arial Bold 24 point, caps & lower case. Text color is white.
20
Workshop Process Cyclic Process Scenarios MOEs Workshop I Methods
Inputs from: Air Force (AF Strat Plan & Majcom MAPs, etc.), other Gov’t, Academia, Industry Scenarios MOEs Throughout Process Workshop I 17-18 Jan 01 Eglin AFB Understand the Air Force Capability Needs Methods Capabilities Needed Workshop II 22-23 May 01 Colorado Springs Assess & Link AF Capability Needs with Aerospace Vehicle Concepts Concepts Workshop III 18-19 Sep 01 Wright-Patt AFB Identify Technology Programs to Support Concepts & Capability Needs Investment Plan Cyclic Process POM
21
INVITED ORGANIZATIONS
ACC, AC2ISRC, AFMC, AFSOC, AFSPC, AMC AFRL (CC, XP, AFOSR, and all Tech Directorates) ASC, ESC, SMC, HSW, AEDC USAF/XP, USAF/XO, SAF/AQR, DDR&E NASA Scientific Advisory Board NAIC US Army TRADOC NASC, NAWC Battle Labs Boeing, Lockheed-Martin, Northrop Grumman, Orbital Sciences, Allison, General Electric, Honeywell, Pratt & Whitney, Raytheon
22
WORKSHOP II TOP CONCEPT CATEGORIES
Global Power Strike UAVs Long-Range Deep Strike Aircraft Mach 5+ UCAV Directed Energy Tactical Aircraft Airborne Carrier Global Vigilance High-Altitude Long Endurance ISR Platforms Recce/Strike UAVs Cooperative/Persistent Surveillance Strike Vehicles Unattended Battlespace Sensors Global Reach Strategic Airlifter Tactical Airlifter Tanker Space Operations Vehicle CSAR and Special Ops Cargo-class SSTOL/VSTOL CSAR/Special Ops Precision Engagement UAVs
23
WORKSHOP II TOP CONCEPT CATEGORIES
Global Power Strike UAVs Long-Range Deep Strike Aircraft Mach 5+ UCAV Directed Energy Tactical Aircraft Airborne Carrier Global Vigilance High-Altitude Long Endurance ISR Platforms Recce/Strike UAVs Cooperative/Persistent Surveillance Strike Vehicles Unattended Battlespace Sensors Global Reach Strategic Airlifter Tactical Airlifter Tanker Space Operations Vehicle CSAR and Special Ops Cargo-class SSTOL/VSTOL CSAR/Special Ops Precision Engagement UAVs
24
Workshop IV – The next step
Goals Energize research community on critical research needs of the Air Force Educate academic community on Workshops I-III Translate technical challenges from Workshop III into basic science issues Identify opportunities for new or additional research
25
Workshop Schedule Multidisciplinary Technologies
9th AIAA MOA Conference, 4-6 Sept, Atlanta GA Air Vehicles Controls Technologies 2002 IEEE Conference on Decision & Control, Dec, Las Vegas NV Aeronautical Sciences Technologies 41st Aerospace Sciences Meeting, 6-9 Jan 2003, Reno NV Air Vehicles Structures Technologies 44th Structures, Structural Dynamics, and Materials Conference, 7-10 April 2003, Norfolk VA
26
Draft Outline Introduction Dr. Jeff Tromp 1330 – 1335
Operator's View of Air Mr. Dave Leggett 1335 – 1420 Vehicles Future Technologies Air Vehicles Structures Research Needs Dr. Dave Pratt – 1450 Dr. Larry Byrd – 1520 Mr. Mike Spottswood 1520 – 1550 Mr. Bill Baron – 1620 Group discussion Dr. Dave Pratt – 1700
Similar presentations
